Issuing a cache flush for the whole bitstream buffer is not optimal in the first
place when only a part of it was written. But given that the buffer is mapped in
writecombine mode, it is not needed at all.
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
drivers/media/platform/coda/coda-bit.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/media/platform/coda/coda-bit.c
b/drivers/media/platform/coda/coda-bit.c
index d39789d..d336cb6 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -181,10 +181,6 @@ static int coda_bitstream_queue(struct coda_ctx *ctx,
if (n < src_size)
return -ENOSPC;
- dma_sync_single_for_device(&ctx->dev->plat_dev->dev,
- ctx->bitstream.paddr, ctx->bitstream.size,
- DMA_TO_DEVICE);
-
src_buf->v4l2_buf.sequence = ctx->qsequence++;
return 0;
--
2.1.4
--
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